﻿using System;

class DigitName
{
    static void Main()
    {
        int number;
        Console.WriteLine("Type first number:");
        bool isNumberValid = int.TryParse(Console.ReadLine(), out number);

        if (isNumberValid)
        {
            switch (number)
            {
                case 1: Console.WriteLine("One");
                    break;
                case 2: Console.WriteLine("Two");
                    break;
                case 3: Console.WriteLine("Three");
                    break;
                case 4: Console.WriteLine("Four");
                    break;
                case 5: Console.WriteLine("Five");
                    break;
                case 6: Console.WriteLine("Six");
                    break;
                case 7: Console.WriteLine("Seven");
                    break;
                case 8: Console.WriteLine("Eight");
                    break;
                case 9: Console.WriteLine("Nine");
                    break;
                case 0: Console.WriteLine("Zero");
                    break;

            }
        }
    }
}